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        <a class="navbar-brand" href="./"><img src="./resources/logo-70x70.png">&nbsp;OpenLayers 3 Examples</a>
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          <h4 id="title">Vector layer example</h4>
          <p id="shortdesc">Example of a countries vector layer with country information.</p>
          <div id="docs"><p>The countries are loaded from a GeoJSON file. Information about countries is shown on hover and click. Zoom in a few times to see country name labels.</p>
</div>
          <div id="tags">vector, osm, xml, loading, server</div>
          <div id="api-links">Related API documentation: <ul class="inline"><li><a href="../apidoc/ol.Map.html" title="API documentation for ol.Map">ol.Map</a></li>,<li><a href="../apidoc/ol.View.html" title="API documentation for ol.View">ol.View</a></li>,<li><a href="../apidoc/ol.format.GeoJSON.html" title="API documentation for ol.format.GeoJSON">ol.format.GeoJSON</a></li>,<li><a href="../apidoc/ol.layer.Tile.html" title="API documentation for ol.layer.Tile">ol.layer.Tile</a></li>,<li><a href="../apidoc/ol.layer.Vector.html" title="API documentation for ol.layer.Vector">ol.layer.Vector</a></li>,<li><a href="../apidoc/ol.source.MapQuest.html" title="API documentation for ol.source.MapQuest">ol.source.MapQuest</a></li>,<li><a href="../apidoc/ol.source.Vector.html" title="API documentation for ol.source.Vector">ol.source.Vector</a></li>,<li><a href="../apidoc/ol.style.Fill.html" title="API documentation for ol.style.Fill">ol.style.Fill</a></li>,<li><a href="../apidoc/ol.style.Stroke.html" title="API documentation for ol.style.Stroke">ol.style.Stroke</a></li>,<li><a href="../apidoc/ol.style.Style.html" title="API documentation for ol.style.Style">ol.style.Style</a></li>,<li><a href="../apidoc/ol.style.Text.html" title="API documentation for ol.style.Text">ol.style.Text</a></li></ul></div>
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        <form method="POST" id="jsfiddle-form" target="_blank" action="http://jsfiddle.net/api/post/jquery/1.11.0/">
          <textarea class="hidden" name="js">var style &#x3D; new ol.style.Style({
  fill: new ol.style.Fill({
    color: &#x27;rgba(255, 255, 255, 0.6)&#x27;
  }),
  stroke: new ol.style.Stroke({
    color: &#x27;#319FD3&#x27;,
    width: 1
  }),
  text: new ol.style.Text({
    font: &#x27;12px Calibri,sans-serif&#x27;,
    fill: new ol.style.Fill({
      color: &#x27;#000&#x27;
    }),
    stroke: new ol.style.Stroke({
      color: &#x27;#fff&#x27;,
      width: 3
    })
  })
});
var styles &#x3D; [style];

var vectorLayer &#x3D; new ol.layer.Vector({
  source: new ol.source.Vector({
    url: &#x27;data/geojson/countries.geojson&#x27;,
    format: new ol.format.GeoJSON()
  }),
  style: function(feature, resolution) {
    style.getText().setText(resolution &lt; 5000 ? feature.get(&#x27;name&#x27;) : &#x27;&#x27;);
    return styles;
  }
});

var map &#x3D; new ol.Map({
  layers: [
    new ol.layer.Tile({
      source: new ol.source.MapQuest({layer: &#x27;sat&#x27;})
    }),
    vectorLayer
  ],
  target: &#x27;map&#x27;,
  view: new ol.View({
    center: [0, 0],
    zoom: 1
  })
});

var highlightStyleCache &#x3D; {};

var featureOverlay &#x3D; new ol.layer.Vector({
  source: new ol.source.Vector(),
  map: map,
  style: function(feature, resolution) {
    var text &#x3D; resolution &lt; 5000 ? feature.get(&#x27;name&#x27;) : &#x27;&#x27;;
    if (!highlightStyleCache[text]) {
      highlightStyleCache[text] &#x3D; [new ol.style.Style({
        stroke: new ol.style.Stroke({
          color: &#x27;#f00&#x27;,
          width: 1
        }),
        fill: new ol.style.Fill({
          color: &#x27;rgba(255,0,0,0.1)&#x27;
        }),
        text: new ol.style.Text({
          font: &#x27;12px Calibri,sans-serif&#x27;,
          text: text,
          fill: new ol.style.Fill({
            color: &#x27;#000&#x27;
          }),
          stroke: new ol.style.Stroke({
            color: &#x27;#f00&#x27;,
            width: 3
          })
        })
      })];
    }
    return highlightStyleCache[text];
  }
});

var highlight;
var displayFeatureInfo &#x3D; function(pixel) {

  var feature &#x3D; map.forEachFeatureAtPixel(pixel, function(feature, layer) {
    return feature;
  });

  var info &#x3D; document.getElementById(&#x27;info&#x27;);
  if (feature) {
    info.innerHTML &#x3D; feature.getId() + &#x27;: &#x27; + feature.get(&#x27;name&#x27;);
  } else {
    info.innerHTML &#x3D; &#x27;&amp;nbsp;&#x27;;
  }

  if (feature !&#x3D;&#x3D; highlight) {
    if (highlight) {
      featureOverlay.getSource().removeFeature(highlight);
    }
    if (feature) {
      featureOverlay.getSource().addFeature(feature);
    }
    highlight &#x3D; feature;
  }

};

map.on(&#x27;pointermove&#x27;, function(evt) {
  if (evt.dragging) {
    return;
  }
  var pixel &#x3D; map.getEventPixel(evt.originalEvent);
  displayFeatureInfo(pixel);
});

map.on(&#x27;click&#x27;, function(evt) {
  displayFeatureInfo(evt.pixel);
});
</textarea>
          <textarea class="hidden" name="css"></textarea>
          <textarea class="hidden" name="html">&lt;div class&#x3D;&quot;row-fluid&quot;&gt;
  &lt;div class&#x3D;&quot;span12&quot;&gt;
    &lt;div id&#x3D;&quot;map&quot; class&#x3D;&quot;map&quot;&gt;&lt;/div&gt;
  &lt;/div&gt;
&lt;/div&gt;

&lt;div class&#x3D;&quot;row-fluid&quot;&gt;
  &lt;div class&#x3D;&quot;span4&quot;&gt;&lt;/div&gt;
  &lt;div class&#x3D;&quot;span4 offset4&quot;&gt;
    &lt;div id&#x3D;&quot;info&quot; class&#x3D;&quot;alert alert-success&quot;&gt;
      &amp;nbsp;
    &lt;/div&gt;
  &lt;/div&gt;
&lt;/div&gt;
</textarea>
          <input type="hidden" name="wrap" value="l">
          <input type="hidden" name="resources" value="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css,https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js,http://openlayers.org/en/v3.11.1/css/ol.css,http://openlayers.org/en/v3.11.1/build/ol.js">
        </form>
        <pre><code id="example-source" class="language-markup">&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
&lt;title&gt;Vector layer example&lt;/title&gt;
&lt;script src="https://code.jquery.com/jquery-1.11.2.min.js"&gt;&lt;/script&gt;
&lt;link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css"&gt;
&lt;script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"&gt;&lt;/script&gt;
&lt;link rel="stylesheet" href="http://openlayers.org/en/v3.11.1/css/ol.css" type="text/css"&gt;
&lt;script src="http://openlayers.org/en/v3.11.1/build/ol.js"&gt;&lt;/script&gt;

&lt;/head&gt;
&lt;body&gt;
&lt;div class="container-fluid"&gt;

&lt;div class&#x3D;&quot;row-fluid&quot;&gt;
  &lt;div class&#x3D;&quot;span12&quot;&gt;
    &lt;div id&#x3D;&quot;map&quot; class&#x3D;&quot;map&quot;&gt;&lt;/div&gt;
  &lt;/div&gt;
&lt;/div&gt;

&lt;div class&#x3D;&quot;row-fluid&quot;&gt;
  &lt;div class&#x3D;&quot;span4&quot;&gt;&lt;/div&gt;
  &lt;div class&#x3D;&quot;span4 offset4&quot;&gt;
    &lt;div id&#x3D;&quot;info&quot; class&#x3D;&quot;alert alert-success&quot;&gt;
      &amp;nbsp;
    &lt;/div&gt;
  &lt;/div&gt;
&lt;/div&gt;

&lt;/div&gt;
&lt;script&gt;
var style &#x3D; new ol.style.Style({
  fill: new ol.style.Fill({
    color: &#x27;rgba(255, 255, 255, 0.6)&#x27;
  }),
  stroke: new ol.style.Stroke({
    color: &#x27;#319FD3&#x27;,
    width: 1
  }),
  text: new ol.style.Text({
    font: &#x27;12px Calibri,sans-serif&#x27;,
    fill: new ol.style.Fill({
      color: &#x27;#000&#x27;
    }),
    stroke: new ol.style.Stroke({
      color: &#x27;#fff&#x27;,
      width: 3
    })
  })
});
var styles &#x3D; [style];

var vectorLayer &#x3D; new ol.layer.Vector({
  source: new ol.source.Vector({
    url: &#x27;data/geojson/countries.geojson&#x27;,
    format: new ol.format.GeoJSON()
  }),
  style: function(feature, resolution) {
    style.getText().setText(resolution &lt; 5000 ? feature.get(&#x27;name&#x27;) : &#x27;&#x27;);
    return styles;
  }
});

var map &#x3D; new ol.Map({
  layers: [
    new ol.layer.Tile({
      source: new ol.source.MapQuest({layer: &#x27;sat&#x27;})
    }),
    vectorLayer
  ],
  target: &#x27;map&#x27;,
  view: new ol.View({
    center: [0, 0],
    zoom: 1
  })
});

var highlightStyleCache &#x3D; {};

var featureOverlay &#x3D; new ol.layer.Vector({
  source: new ol.source.Vector(),
  map: map,
  style: function(feature, resolution) {
    var text &#x3D; resolution &lt; 5000 ? feature.get(&#x27;name&#x27;) : &#x27;&#x27;;
    if (!highlightStyleCache[text]) {
      highlightStyleCache[text] &#x3D; [new ol.style.Style({
        stroke: new ol.style.Stroke({
          color: &#x27;#f00&#x27;,
          width: 1
        }),
        fill: new ol.style.Fill({
          color: &#x27;rgba(255,0,0,0.1)&#x27;
        }),
        text: new ol.style.Text({
          font: &#x27;12px Calibri,sans-serif&#x27;,
          text: text,
          fill: new ol.style.Fill({
            color: &#x27;#000&#x27;
          }),
          stroke: new ol.style.Stroke({
            color: &#x27;#f00&#x27;,
            width: 3
          })
        })
      })];
    }
    return highlightStyleCache[text];
  }
});

var highlight;
var displayFeatureInfo &#x3D; function(pixel) {

  var feature &#x3D; map.forEachFeatureAtPixel(pixel, function(feature, layer) {
    return feature;
  });

  var info &#x3D; document.getElementById(&#x27;info&#x27;);
  if (feature) {
    info.innerHTML &#x3D; feature.getId() + &#x27;: &#x27; + feature.get(&#x27;name&#x27;);
  } else {
    info.innerHTML &#x3D; &#x27;&amp;nbsp;&#x27;;
  }

  if (feature !&#x3D;&#x3D; highlight) {
    if (highlight) {
      featureOverlay.getSource().removeFeature(highlight);
    }
    if (feature) {
      featureOverlay.getSource().addFeature(feature);
    }
    highlight &#x3D; feature;
  }

};

map.on(&#x27;pointermove&#x27;, function(evt) {
  if (evt.dragging) {
    return;
  }
  var pixel &#x3D; map.getEventPixel(evt.originalEvent);
  displayFeatureInfo(pixel);
});

map.on(&#x27;click&#x27;, function(evt) {
  displayFeatureInfo(evt.pixel);
});

&lt;/script&gt;
&lt;/body&gt;
&lt;/html&gt;</code></pre>
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    <script src="./resources/common.js"></script>
    <script src="./resources/prism/prism.min.js"></script>
    <script src="loader.js?id=vector-layer"></script>

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